Send and receive
Work with outbound email and inbound replies through the same inbox APIs.
Postmark alternatives for tested transactional email.
Go from an API call to a checked customer message. MailSlurp connects programmable inboxes, inbound handling and email QA.
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Give every workflow an address of its own.
Create real email addresses in the dashboard or through the API. Receive replies, inspect messages and organize inboxes around your customers, applications and test environments.
Use MailSlurp domains or connect your own domain. Choose inbox lifetimes and retention settings to suit the workflow.
Explore programmable email
React to incoming messages
Use webhooks to notify your app when an email arrives, then retrieve its content and attachments.
Inspect what was delivered
Open the received message, headers and raw content when a workflow needs debugging.
Keep the received message within reach.
Look beyond the send event. Open an email in the dashboard, inspect its final content and use the API to retrieve the fields your application needs.
For invoices, orders and support messages, add AI extraction to turn email and attachment content into structured records.
Turn incoming email into data
Test the send before your customers depend on it.
Pair your email workflow with inbox placement testing, domain checks and device previews. Check where a test lands and how the message looks before releasing a new template or changing a sending service.
Check inbox placement
How to bring a workflow into MailSlurp
Create an inbox and connect your app
Start with an address in the dashboard, then use the MailSlurp API and SDK guides to create and manage inboxes from your application.
Send a representative message
Test the confirmation, receipt or reply your app depends on. Inspect the delivered email and verify any domain settings required for your sending path. Plans show the current sending allowances.
Automate the next action
Configure a webhook or wait for the expected email through the API. Check the content, extract the data you need and continue the workflow with a repeatable test.
Give transactional email a repeatable check.
Follow the message and its reply
Choose a reset, invoice or account notification and run it through a dedicated test inbox. Assert the details your customer needs, then complete the link or code step in the application.
Allow for received messages and repeat tests
MailSlurp brings these inbox checks together with reply webhooks, structured extraction and device previews. Evaluate a small set of representative messages and compare current plan allowances with the volume and test frequency your team expects.
Questions before you switch?
Which transactional messages should I include in an evaluation?
Use a password reset, an order receipt and a customer reply. Check the destination, link or code, attachment and final action in your app. MailSlurp gives each scenario an inbox and lets your tests wait for the expected message. Include an expired link or delayed message so the evaluation covers failure handling as well as a successful send. Plan the transactional email checks.
Can I receive replies and attachments?
Yes. Create an inbox, receive email and retrieve its content, headers and attachments through the API. Use webhooks when your application needs to react to incoming messages.
How do I evaluate a migration?
Map your existing send requests, inbound routes and event handling. Try one complete workflow with a representative message and reply, check domain configuration and current plan allowances, then expand after the first flow works.
Bring your next email workflow into MailSlurp.
Start with an inbox, a real message and the next action your app needs.
